如何通过 XPath 检索 CDATA 标记内的元素文本？

考虑以下 xml 片段：

<Obj>
   <Name><![CDATA[SomeText]]></Name>
</Obj>

如何通过 XPath 检索“SomeText”值？我正在使用 Nauman Leghari 的（非常好）可视化 XPath 工具.
/Obj/Name返回元素
/Obj/Name/text()返回空白

我不认为这是该工具的问题（我可能是错的）-我还读过 XPath 无法提取 CDATA（请参阅最后的回复在这个线程中） - 这对我来说听起来有点奇怪。

/Obj/Name/text()是返回 CDATA 标记内容的 XPath。

让我失望的是 Value 属性的行为。对于 XMLNode（DOM 世界），Element（带有 CDATA 或其他）的 XmlNode.Value 属性返回 Null。 InnerText 属性将为您提供 CDATA/Text 内容。 如果使用 Xml.Linq，XElement.Value 返回 CDATA 内容。

string sXml = @"
<object>
    <name><![CDATA[SomeText]]></name>
    <name>OtherName</name>
</object>";

XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml( sXml );
XmlNamespaceManager nsMgr = new XmlNamespaceManager(xmlDoc.NameTable);

Console.WriteLine(@"XPath = /object/name" );
WriteNodesToConsole(xmlDoc.SelectNodes("/object/name", nsMgr));

Console.WriteLine(@"XPath = /object/name/text()" );
WriteNodesToConsole( xmlDoc.SelectNodes("/object/name/text()", nsMgr) );

Console.WriteLine(@"Xml.Linq = obRoot.Elements(""name"")");
XElement obRoot = XElement.Parse( sXml );
WriteNodesToConsole( obRoot.Elements("name") );

Output:

XPath = /object/name
        NodeType = Element
        Value = <null>
        OuterXml = <name><![CDATA[SomeText]]></name>
        InnerXml = <![CDATA[SomeText]]>
        InnerText = SomeText

        NodeType = Element
        Value = <null>
        OuterXml = <name>OtherName</name>
        InnerXml = OtherName
        InnerText = OtherName

XPath = /object/name/text()
        NodeType = CDATA
        Value = SomeText
        OuterXml = <![CDATA[SomeText]]>
        InnerXml =
        InnerText = SomeText

        NodeType = Text
        Value = OtherName
        OuterXml = OtherName
        InnerXml =
        InnerText = OtherName

Xml.Linq = obRoot.Elements("name")
        Value = SomeText
        Value = OtherName

Turned out the author of Visual XPath had a TODO for the CDATA type of XmlNodes. A little code snippet and I have CDATA support now.

MainForm.cs

private void Xml2Tree( TreeNode tNode, XmlNode xNode)
{
   ...
   case XmlNodeType.CDATA:
      //MessageBox.Show("TODO: XmlNodeType.CDATA");
      // Gishu                    
      TreeNode cdataNode = new TreeNode("![CDATA[" + xNode.Value + "]]");
      cdataNode.ForeColor = Color.Blue;
      cdataNode.NodeFont = new Font("Tahoma", 12);
      tNode.Nodes.Add(cdataNode);
      //Gishu
      break;